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Showing posts from May, 2020

Long range focus torch circuit diagram & other info

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Long Range Focus Torch Circuit diagram

Bluetooth earphone to Bluetooth receiver circuit diagram & other info

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Bluetooth earphone PCB Bluetooth earphone to Bt receiver circuit diagram Connections for female audio jack are given below 

Surface mounted led's circuit diagram & other info

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LED  SMD ( Surface Mounted) LED polarity Circuit diagram Parallel connection circuit diagram for 15 led which are connected with USB cable 

Earphone Circuit Diagram & other info

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3.5 mm audio male connector details The microphone and ground are labelled at two places because in old type of earphones some brand used MIC/GND vice versa to the other brands Music only earphones circuit diagram This is a simple earphone circuit diagram without mic & button (Music earphones). This circuit diagram shows that how to use a 4 terminals audio connector instead of  a 3 terminals audio connector This circuit diagram is used in real-time for creation of  earphone at home from waste material . The video of this Project is available on YouTube Link is :-    How to make earphones at home. You can Visit My youtube channel From here :-  Technical Vampire